PIC18F87J72-I/PT Microchip Technology, PIC18F87J72-I/PT Datasheet - Page 291

• Manufacturer Part Number: PIC18F87J72-I/PT
• Description: IC PIC MCU 8BIT 14KB FLSH 80TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F87J72-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 128KB (64K x 16)
• Package / Case: 80-TQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 51
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 12x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, USART, SPI, I2C
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 51
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14
• Controller Family/series: PIC18F
• No. Of I/o's: 51
• Ram Memory Size: 3923Byte
• Cpu Speed: 48MHz
• No. Of Timers: 4
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

EXAMPLE 22-4:
 2010 Microchip Technology Inc.
///////////////////////////////////////////////////////////////////////////////////////////////
// STEP 4: Write to AFE registers
// Initialize the AFE by writing to PHASE, GAIN, STATUS, CONFIG1 and CONFIG2 registers.
// Below is an example. The registers can be programmed with values as required
// by the application.
///////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////
// Read from AFE registers to verify; this step is optional and does not affect AFE Operation.
// As an example, only GAIN, STATUS, CONFIG1 and CONFIG2 are read.
///////////////////////////////////////////////////////////////////////////////////////////////
LATDbits.LATD7=0;
if (SSPSTATbits.BF==1)
Dummy_Read=SSPBUF;
SSPBUF = 0x0E;
while(!SSPSTATbits.BF);
Dummy_Read=SSPBUF;
SSPBUF =0x00;
while(!SSPSTATbits.BF);
Dummy_Read=SSPBUF;
SSPBUF =0x04;
while(!SSPSTATbits.BF);
Dummy_Read=SSPBUF;
SSPBUF = 0xA0;
while(!SSPSTATbits.BF);
Dummy_Read=SSPBUF;
SSPBUF = 0x10;
while(!SSPSTATbits.BF);
Dummy_Read=SSPBUF;
SSPBUF = 0x01;
while(!SSPSTATbits.BF);
Dummy_Read=SSPBUF;
LATDbits.LATD7=1;
LATDbits.LATD7=0;
SSPBUF = 0x11;
while(!SSPSTATbits.BF);
Dummy_Read=SSPBUF;
SSPBUF =0x00;
while(!SSPSTATbits.BF);
D_S_ADC_data1=SSPBUF;
SSPBUF =0x00;
while(!SSPSTATbits.BF);
D_S_ADC_data2=SSPBUF;
SSPBUF =0x00;
while(!SSPSTATbits.BF);
D_S_ADC_data3=SSPBUF;
SSPBUF = 0x00;
while(!SSPSTATbits.BF);
D_S_ADC_data4=SSPBUF;
LATDbits.LATD7=1;
WRITING AND READING AFE REGISTERS THROUGH THE MSSP
//Chipselect enable for Delta Sigma ADC
//Address and Write command for Gain Register
// A6-A5--->00;A4-A0---->0x07;R/W---0 for write
//Dummy read to clear Buffer Full Status bit
//PHASE Register: No Delay
//Address automatically incremented GAIN Register
//CH1 gain 16, CH0 gain 1, No Boost
//Address automatically incremented STATUS Register
//Default values
//Address automatically incrementedData for CONFIG1 Register
//No Dither, Other values are default
//Address automatically incremented Data for CONFIG2 Register
//CLKEXT bit should be always programmed to 1
//Disable chip select after read/write of each set of registers
//Chip select enable for AFE
//Address and Read command for Gain Register
// A6-A5--->00;A4-A0---->0x08;R/W---1 for read
//Dummy read to clear Buffer Full Status bit
//Data from GAIN Register
//Data from STATUS Register, Address automatically incremented
//Data from CONFIG1 Register, Address automatically incremented
//Data from CONFIG2 Register, Address automatically incremented
//Disable chip select after read/write of each set of registers
Preliminary
PIC18F87J72 FAMILY
DS39979A-page 291